Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must disclose behavioral traits. It only states the action without clarifying whether the operation is read-only, what the return format includes (beyond the output schema), or any side effects. Minimal disclosure for a read operation, but insufficient detail for an agent to understand constraints like pagination or filtering.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.